What is Transmission Electron Microscopy (TEM) primarily used for?

Transmission Electron Microscopy (TEM) is primarily used for identifying extremely small asbestos fibers because it has a high resolution that allows for the observation of structures at the nanoscale. This ability is crucial in asbestos analysis, as asbestos fibers can be very thin and may not be detectable using less sensitive methods. TEM can visualize fibers that are often less than 0.1 micrometers wide, thereby providing the capability to confirm the presence of asbestos in samples that would not be identified through conventional light microscopy methods.

The high magnification capacity and capability to produce clear images of very small particles make TEM an essential tool in the field of asbestos identification and analysis. This specificity for small dimensions is particularly important in ensuring accurate assessments of potential exposure risks in various environments, especially where fine fibers may pose health hazards.